Finder



May 4, 1926.

J; W. TURK FINDER Filed May 23,

INVENTOR (J4/755 M Tz//F/f UNETED l JAMES VI. TURK, 0F BNGHAMTON, NEW YORK, ASSGNOR TG ANSCO PEOTOPRODUCTS,

NC., OF BENGTIAMTON, NEWT YORK.

FINDER.

Application filed May 23, 1925.

To all whom t may concern:

Be it known that I, JAMES W. TURK, a citizen of the United States, and a resident of Binghamton, county of Broome and State of New York, have invented a new and useful Improvement in a Finder, of which the following is a description, reference being had to the accompanying drawing, which forms a part of this specification.

My invention has to do with finders commonly used on photographic cameras and known as view finders.

The primary object of my invention is to provide a novel finder of this character equipped with retaining means for the image receiving lens.

Another object is to so construct the finder that the receiving cap also acts as a reinforcing means for the walls of the finder.

A further object lies in the provision of means for holding said retaining cup in position.

Still another object is to provide a finder f that is of few parts, simple in construction,

easy to assemble and exceedingly compact and sturdy.

ln many finders of this character heretofore in use, the top piece of the finder forming the diaphragm has been made integral with the side and front walls of the finder. This construction is objectionable, due to the fact that in assembling s uch a finder, the forcing of the image receiving lens into position in the diaphragm frequently results in a bending or distorting of said diaphragm and the side walls. I have overcome this objection by providing a separate top piece for the finder which acts as a combined diaphragm and retaining cap, and also prevents bulging or distortion of the walls of the finder.

Gther objects and advantages in details of construction and operation will be apparent as the description proceeds reference being had to the accompanying drawing wherein like reference numerals indicate like parts.

In the drawing Figure 1 is a perspective view of a. camera front upon which is mounted my improved finder. v

Eigure 2 is a side View of my improved finder ta .in cross section. n l

ltsnife is a captadas Serial' No. 32,412.

showing the various parts and elements of which the finder is constructed.

A. camera front is indicated at 1 and as shown, is provided with an offset, upst'anding supporting flange 'or ring f2 for rotatably receiving my improved nder indicated generally in ligure 1 as at 3., A flanged retaining ring 4 is rotatably fitted within the support 2 and within such retaining ring 4 is received the front finder lens 5 secured in, position by means of fingers 6, but from the inner projectingflange of the ring 4 and bent downwardly into engagement with thc lens 5 as clearly shown in Figure 2. A rrict-ion washer Z is placed between the support 2 and the front wall 8 of the finder body to prevent accidental turning of the finder upon the supporting ring 4. The front wall 8 of the finder body is provided vith an opening 9, the edges. of which have bearing upon the periphery 10 of the supporting ring 4. A small lug 11 is turned outwardly from one point at the edge of the opening 9. This lug engaging within a cut out portion 12 in the supporting flange 2 whereby the finder isA limited in its rotation.

rlhe side pieces 13 and 14 of the finder are bent backwardly at right angles to the front piece 8. At the lower edges of these side walls, and near the front thereof, indentations 15 and 16 are punched inwardly to form bearings for openings 16 formed in the lower ends of 'lianges 17, bent at right angles to the back piece 18 whereby said back piece is hinged to the body of the finder. The flanges 17 of the back piece are cut out centrally thereof to form retaining fingers 19 which engage over the side edges of the mirror 20, thus holding the same in proper position within the back piece of holder 18.

Small fingers 21 and are cut from the sloping edges of the sides 13 and 14 and near the top thereof for frictional engagement with the flanges 1? of the back whereby said back is retained in its closed position. The tension of these fingers is not so great however but the back 18 may be pulled downwardly on its pivot, thus permitting access to the interior of the finder and to the mirror for cleaning and other purposes.

Also cut from the side walls 13 and 14 and centrally thereof near the upper edge are the' supporting lugs 2B and .24 bent inwardly provide snppertng guide for A top piece or retaining cap cut out as at 26 to torni the diaphragm of the finder is indicated at 27 and is provided with downwardly extending side flanges 28 and 29 which embrace the upper edges of the side pieces 13 and 14. Indentations 3() and 31 are provided in the side flanges 28 and 29 for engagement within the opening in the side pieces 13 and 14 formed by striking out the lugs 23 and 24, whereby the cap 27 is securely retained in position upon the finder. The rear edge of the cap 27 is provided with a downwardly extending nger or lug 32 which embraces the rear end of the image lens 25, thus retaining the same in position and preventing it from sliding outwardly7 when the back 18 is pivoted downwardly as shown in dotted lines in Figure 2.

It will be noted that this retaining cap 27 performs a three told function. First it acts as a diaphragm of the finder, secondly, it embraces the side walls of the finder body thus preventing bending or distortion thereof and keeping them in correct alignment for holding the image lens in proper position and thirdly, it provides a retaining member for preventing the image lens from slipping out of its support when the finder is opened. Such a construction renders the finder more readily assembled and less apt to be distorted or bent out of shape when the various parts are placed in position.

The operation of my invention is obvious from the foregoing description and need not be repeated. It will be understood of course that the embodiment shown and described herein is the preferred form only and that the invention is susceptible to many variations in details or" construction and operation without departing from the scope and spirit thereof as defined by the appended claims.

I claim 1. A finder comprising a body, means on said body for supporting a lens mounted therein, a flanged diaphragm cap fitting over the upper edges of said body and said lens, one edge of said cap having a` centrally downwardly extending finger engaging the adjacent edge ot said lens.

2. A finder comprising a body, the op posing side walls ot' which are provided with inwardly extending supporting lugs struck trom said walls, a lens supported on said lugs, a flanged diaphragm cap fitting over the upper edges ot' said body and having its `flanges embracing the sides thereof, and means in said flanges engaging in the openings formed by said lugs in said sides, for holding said cap in position. 1

A finder comprising a body, the op posing side walls ot which. are provided with inwardly extending supporting lugs struck from said walls, a lens supported on said lugs, a flanged diaphragm cap fitting over the upper edges of said body and having its flanges embracing the sides. thereof, and means in said flanges engaging in the openings ormed by said ,lugs in said sides, for holding said cap in position, and a downwardly extending finger on one edge ot said cap engaging the adjacent edge of said lens.

JAMES W. TURK. 

